Providing travel-based augmented reality content relating to user-submitted reviews

ABSTRACT

Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and method for providing augmented reality content relating to user-submitted reviews in association with traveling, in accordance with some example embodiments. The program and method provide for receiving, by a messaging application running on a device of a user, a request to scan an image captured by a device camera; determining, in response to receiving the request, a travel parameter associated with the request and an attribute of an object depicted in the image; selecting, from among plural candidate user interfaces relating to user-submitted reviews, a user interface that corresponds to the travel parameter and the attribute; and displaying an augmented reality content item, which includes the selected user interface, with the image.

CLAIM OF PRIORITY

This application claims the benefit of priority to U.S. ProvisionalApplication Ser. No. 63/045,438, filed on Jun. 29, 2020, which isincorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates generally to a messaging system,including providing augmented reality content with a captured image.

BACKGROUND

Messaging systems provide for the exchange of message content betweenusers. For example, a messaging system allows a user to exchange messagecontent (e.g., text, images) with one or more other users.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

In the drawings, which are not necessarily drawn to scale, like numeralsmay describe similar components in different views. To easily identifythe discussion of any particular element or act, the most significantdigit or digits in a reference number refer to the figure number inwhich that element is first introduced. Some embodiments are illustratedby way of example, and not limitation, in the figures of theaccompanying drawings.

FIG. 1 is a diagrammatic representation of a networked environment inwhich the present disclosure may be deployed, in accordance with someexample embodiments.

FIG. 2 is a diagrammatic representation of a messaging system that hasboth client-side and server-side functionality, in accordance with someexample embodiments.

FIG. 3 is a diagrammatic representation of a data structure asmaintained in a database, in accordance with some example embodiments.

FIG. 4 is a diagrammatic representation of a message, in accordance withsome example embodiments.

FIG. 5 is an interaction diagram illustrating a process for providingaugmented reality content relating to user-submitted reviews inassociation with traveling, in accordance with some example embodiments.

FIG. 6A illustrates an example user interface in which a user requeststo display augmented reality content relating to user-submitted reviewsin association with traveling, in accordance with some exampleembodiments.

FIG. 6B illustrates an example user interface for displaying augmentedreality content relating to user-submitted reviews in association withtraveling, in accordance with some example embodiments.

FIG. 7A illustrates an example user interface in which a user requeststo display augmented reality content relating to user-submitted reviewsin association with traveling, in accordance with some exampleembodiments.

FIG. 7B illustrates an example user interface for displaying augmentedreality content relating to user-submitted reviews in association withtraveling, in accordance with some example embodiments.

FIG. 8 is a flowchart illustrating a process for providing augmentedreality content relating to user-submitted reviews in association withtraveling, in accordance with some example embodiments.

FIG. 9 is a flowchart for an access-limiting process, in accordance withsome example embodiments.

FIG. 10 is a diagrammatic representation of a machine in the form of acomputer system within which a set of instructions may be executed forcausing the machine to perform any one or more of the methodologiesdiscussed herein, in accordance with some example embodiments.

FIG. 11 is a block diagram showing a software architecture within whichexamples may be implemented, in accordance with some exampleembodiments.

DETAILED DESCRIPTION

A messaging system typically allow users to exchange content items(e.g., messages, images and/or video) with one another in a messagethread. A messaging system may implement or otherwise work inconjunction with an augmentation system to augment media contentassociated with a message. For example, the augmentation system maycombine overlays, filters and/or augmented reality content with imagedata captured by a device camera. However, a user may wish forfacilitated creation and/or selection of augmented reality content whentraveling.

The disclosed embodiments provide for presenting augmented realitycontent relating to user-submitted reviews in association withtraveling. In response to a user request to perform a scan operation(e.g., to identify objects in a captured image), a messaging clientdetermines both attribute(s) of an object depicted in the image, andtravel parameters associated with the request. For example, the travelparameters indicate travel schedules, transportation schedules, generallocations, specific venues or landmarks, activities, participants and/ortopics of interest.

Based on the travel parameter(s) and attribute(s), the messaging clientselects a user interface from among multiple candidate user interfacerelating to user-submitted reviews. For example, the selected userinterface may correspond with adding, editing or deleting a personaluser review regarding a business, product and/or service. In anotherexample, the selected user interface may correspond with displaying aset of existing user-submitted reviews for the business, product and/orservice. The messaging client displays an augmented reality content item(e.g., corresponding to an augmented reality experience), which includesthe selected user interface, together with the captured image.

FIG. 1 is a block diagram showing an example messaging system 100 forexchanging data (e.g., messages and associated content) over a network.The messaging system 100 includes multiple instances of a client device102, each of which hosts a number of applications, including a messagingclient 104. Each messaging client 104 is communicatively coupled toother instances of the messaging client 104 and a messaging serversystem 108 via a network 106 (e.g., the Internet).

A messaging client 104 is able to communicate and exchange data withanother messaging client 104 and with the messaging server system 108via the network 106. The data exchanged between messaging clients 104,and between a messaging client 104 and the messaging server system 108,includes functions (e.g., commands to invoke functions) as well aspayload data (e.g., text, audio, video or other multimedia data).

The messaging server system 108 provides server-side functionality viathe network 106 to a particular messaging client 104. While certainfunctions of the messaging system 100 are described herein as beingperformed by either a messaging client 104 or by the messaging serversystem 108, the location of certain functionality either within themessaging client 104 or the messaging server system 108 may be a designchoice. For example, it may be technically preferable to initiallydeploy certain technology and functionality within the messaging serversystem 108 but to later migrate this technology and functionality to themessaging client 104 where a client device 102 has sufficient processingcapacity.

The messaging server system 108 supports various services and operationsthat are provided to the messaging client 104. Such operations includetransmitting data to, receiving data from, and processing data generatedby the messaging client 104. This data may include message content,client device information, geolocation information, media augmentationand overlays, message content persistence conditions, social networkinformation, and live event information, as examples. Data exchangeswithin the messaging system 100 are invoked and controlled throughfunctions available via user interfaces (UIs) of the messaging client104.

Turning now specifically to the messaging server system 108, anApplication Program Interface (API) server 110 is coupled to, andprovides a programmatic interface to, application servers 114. Theapplication servers 114 are communicatively coupled to a database server122, which facilitates access to a database 124 that stores dataassociated with messages processed by the application servers 114.Similarly, a web server 112 is coupled to the application servers 114,and provides web-based interfaces to the application servers 114. Tothis end, the web server 112 processes incoming network requests overthe Hypertext Transfer Protocol (HTTP) and several other relatedprotocols.

The Application Program Interface (API) server 110 receives andtransmits message data (e.g., commands and message payloads) between theclient device 102 and the application servers 114. Specifically, theApplication Program Interface (API) server 110 provides a set ofinterfaces (e.g., routines and protocols) that can be called or queriedby the messaging client 104 in order to invoke functionality of theapplication servers 114. The Application Program Interface (API) server110 exposes various functions supported by the application servers 114,including account registration, login functionality, the sending ofmessages, via the application servers 114, from a particular messagingclient 104 to another messaging client 104, the sending of media files(e.g., images or video) from a messaging client 104 to a messagingserver 116, and for possible access by another messaging client 104, thesettings of a collection of media data (e.g., Story), the retrieval of alist of friends of a user of a client device 102, the retrieval of suchcollections, the retrieval of messages and content, the addition anddeletion of entities (e.g., friends) to an entity graph (e.g., a socialgraph), the location of friends within a social graph, and opening anapplication event (e.g., relating to the messaging client 104).

The application servers 114 host a number of server applications andsubsystems, including for example a messaging server 116, an imageprocessing server 118, and a social network server 120. The messagingserver 116 implements a number of message processing technologies andfunctions, particularly related to the aggregation and other processingof content (e.g., textual and multimedia content) included in messagesreceived from multiple instances of the messaging client 104. As will bedescribed in further detail, the text and media content from multiplesources may be aggregated into collections of content (e.g., calledStories or galleries). These collections are then made available to themessaging client 104. Other processor and memory intensive processing ofdata may also be performed server-side by the messaging server 116, inview of the hardware requirements for such processing.

The application servers 114 also include an image processing server 118that is dedicated to performing various image processing operations,typically with respect to images or video within the payload of amessage sent from or received at the messaging server 116.

The social network server 120 supports various social networkingfunctions and services and makes these functions and services availableto the messaging server 116. To this end, the social network server 120maintains and accesses an entity graph 304 (as shown in FIG. 3) withinthe database 124. Examples of functions and services supported by thesocial network server 120 include the identification of other users ofthe messaging system 100 with which a particular user has relationshipsor is “following,” and also the identification of other entities andinterests of a particular user.

FIG. 2 is a block diagram illustrating further details regarding themessaging system 100, according to some examples. Specifically, themessaging system 100 is shown to comprise the messaging client 104 andthe application servers 114. The messaging system 100 embodies a numberof subsystems, which are supported on the client-side by the messagingclient 104 and on the server-side by the application servers 114. Thesesubsystems include, for example, an ephemeral timer system 202, acollection management system 204, an augmentation system 208, a mapsystem 210, an object detection system 212, and/or a user-submittedreview system 214.

The ephemeral timer system 202 is responsible for enforcing thetemporary or time-limited access to content by the messaging client 104and the messaging server 116. The ephemeral timer system 202incorporates a number of timers that, based on duration and displayparameters associated with a message, or collection of messages (e.g., aStory), selectively enable access (e.g., for presentation and display)to messages and associated content via the messaging client 104. Furtherdetails regarding the operation of the ephemeral timer system 202 areprovided below.

The collection management system 204 is responsible for managing sets orcollections of media (e.g., collections of text, image video, and audiodata). A collection of content (e.g., messages, including images, video,text, and audio) may be organized into an “event gallery” or an “eventStory.” Such a collection may be made available for a specified timeperiod, such as the duration of an event to which the content relates.For example, content relating to a music concert may be made availableas a “Story” for the duration of that music concert. The collectionmanagement system 204 may also be responsible for publishing an iconthat provides notification of the existence of a particular collectionto the user interface of the messaging client 104.

The collection management system 204 furthermore includes a curationinterface 206 that allows a collection manager to manage and curate aparticular collection of content. For example, the curation interface206 enables an event organizer to curate a collection of contentrelating to a specific event (e.g., delete inappropriate content orredundant messages). Additionally, the collection management system 204employs machine vision (or image recognition technology) and contentrules to automatically curate a content collection. In certain examples,compensation may be paid to a user for the inclusion of user-generatedcontent into a collection. In such cases, the collection managementsystem 204 operates to automatically make payments to such users for theuse of their content.

The augmentation system 208 provides various functions that enable auser to augment (e.g., annotate or otherwise modify or edit) mediacontent associated with a message. For example, the augmentation system208 provides functions related to the generation and publishing of mediaoverlays for messages processed by the messaging system 100. Theaugmentation system 208 operatively supplies a media overlay oraugmentation (e.g., an image filter) to the messaging client 104 basedon a geolocation of the client device 102. In another example, theaugmentation system 208 operatively supplies a media overlay to themessaging client 104 based on other information, such as social networkinformation of the user of the client device 102. A media overlay mayinclude audio and visual content and visual effects. Examples of audioand visual content include pictures, texts, logos, animations, and soundeffects. An example of a visual effect includes color overlaying. Theaudio and visual content or the visual effects can be applied to a mediacontent item (e.g., a photo) at the client device 102. For example, themedia overlay may include text or image that can be overlaid on top of aphotograph taken by the client device 102. In another example, the mediaoverlay includes an identification of a location overlay (e.g., Venicebeach), a name of a live event, or a name of a merchant overlay (e.g.,Beach Coffee House). In another example, the augmentation system 208uses the geolocation of the client device 102 to identify a mediaoverlay that includes the name of a merchant at the geolocation of theclient device 102. The media overlay may include other indiciaassociated with the merchant. The media overlays may be stored in thedatabase 124 and accessed through the database server 122.

In some examples, the augmentation system 208 provides a user-basedpublication platform that enables users to select a geolocation on a mapand upload content associated with the selected geolocation. The usermay also specify circumstances under which a particular media overlayshould be offered to other users. The augmentation system 208 generatesa media overlay that includes the uploaded content and associates theuploaded content with the selected geolocation.

In other examples, the augmentation system 208 provides a merchant-basedpublication platform that enables merchants to select a particular mediaoverlay associated with a geolocation via a bidding process. Forexample, the augmentation system 208 associates the media overlay of thehighest bidding merchant with a corresponding geolocation for apredefined amount of time.

The map system 210 provides various geographic location functions, andsupports the presentation of map-based media content and messages by themessaging client 104. For example, the map system 210 enables thedisplay of user icons or avatars (e.g., stored in association withprofile data 302, discussed below) on a map to indicate a current orpast location of “friends” of a user, as well as media content (e.g.,collections of messages including photographs and videos) generated bysuch friends, within the context of a map. For example, a message postedby a user to the messaging system 100 from a specific geographiclocation may be displayed within the context of a map at that particularlocation to “friends” of a specific user on a map interface of themessaging client 104. A user can furthermore share his or her locationand status information (e.g., using an appropriate avatar status, asdescribed herein) with other users of the messaging system 100 via themessaging client 104, with this location and status information beingsimilarly displayed within the context of a map interface of themessaging client 104 to selected users.

The object detection system 212 provides various object detectionfunctions within the context of the messaging system 100. The objectdetection system 212 may employ one or more object classifiers toidentify objects depicted in a captured image. The image may correspondto a live video feed captured by a camera (e.g., rear or front facingcamera) of the client device 102. Alternatively or in addition, theimage may correspond to an image (e.g., photo) stored in associationwith the user of the client device 102 (e.g., a photo library).

In one or more embodiments, the object detection system 212 isconfigured to implement or otherwise access object recognitionalgorithms (e.g., including machine learning algorithms) configured toscan the captured image, and to detect/track the movement of objectswithin the image. By way of non-limiting example, detectable objectswithin an image include: a human face, parts of a human body, animalsand parts thereof, landscapes, objects in nature, non-living objects(e.g., buildings, store fronts, food, articles of clothing, chairs,books, cars, buildings, other structures), illustrations of objects(e.g., on posters and/or flyers), text-based objects, equation-basedobjects and the like.

In addition, the object detection system 212 is configured to determineor otherwise access attributes of objects. For a particular object, theobject detection system 212 may determine or retrieve attributes such asa name/type, genre, color, size, shape, texture, environmental factors(e.g., geolocation, time, weather), and/or other supplementalinformation (e.g., a song title/artist for an object corresponding tomedia).

With respect to the environmental factors, the object detection system212 may receive information from the messaging client 104 to identifythe weather, geographical location, time, and so forth around the clientdevice 102 (e.g., via device sensors). The object detection system 212may rank the retrieved attributes based on relevance, such as based ontheir association with the one or more environmental factors. Othermachine learning techniques may be employed to select and rank retrievedattributes. The object detection system 212 may select an object fromthe list of objects detected in the captured image that is associatedwith the highest ranked attributes, and may send an indication of theselected object to the messaging client 104. Alternatively or inaddition, the object detection system 212 may provide for communicatingone or more attributes (e.g., name/type) for each detected object,and/or an indication of the ranking of the attributes to the messagingclient 104.

In one or more embodiments, the object detection system 212 determinesthat one of the attributes corresponds to a keyword that has beensponsored by a third party. For example, third parties may sponsor orpay for certain keywords to be ranked higher than others. In response todetermining that a given attribute corresponds to a sponsored keyword,the object detection system 212 may provide for a higher ranking of thatattribute relative to other attributes.

The user-submitted review system 214 provides various functions relatingto reviews and/or ratings submitted by users (e.g., for businesses,products and/or services). In one or more embodiments, theuser-submitted review system 214 provides for searching for a business,and/or searching for products/services provided by the business.Businesses and their respective products/services may be searchable bysearch parameters, such as by the attribute(s) of the objects asprovided by the object detection system 212.

In one or more embodiments, the user-submitted review system 214 isconfigured to query third-party services using the search parameters.For example, the third-party services may correspond to applications(e.g., apps) directed to maintaining and publishing user-submittedreviews for businesses and their products/services. In response to aquery from the user-submitted review system 214, the third-partyservices may facilitate in surfacing user interfaces that relate to userreviews and/or ratings. For example, the third-party services mayfacilitate in displaying a user interface within the messaging client104, to add, edit and/or delete a personal review and/or a personalrating. In another example, the third-party services may facilitate indisplaying a set of reviews within a user interface, where the set ofreviews corresponds to business in general and/or to particularproduct(s)/service(s) provided by the business.

In one or more embodiments, the messaging system 100 may itselfimplement a user-submitted review service which provides for submissionof reviews/ratings with respect to businesses and theirproducts/services. For example, the messaging system 100 may manage andstore user-submitted reviews within the database 124. Thus, as analternative or supplement to querying the above-mentioned third-partyservices (e.g., directed to user-submitted reviews), the user-submittedreview system 214 may be configured to query the database 124 to presentuser interfaces relating to user reviews and/or ratings.

FIG. 3 is a schematic diagram illustrating data structures 300, whichmay be stored in the database 124 of the messaging server system 108,according to certain examples. While the content of the database 124 isshown to comprise a number of tables, it will be appreciated that thedata could be stored in other types of data structures (e.g., as anobject-oriented database).

The database 124 includes message data stored within a message table306. This message data includes, for any particular one message, atleast message sender data, message recipient (or receiver) data, and apayload. Further details regarding information that may be included in amessage, and included within the message data stored in the messagetable 306 is described below with reference to FIG. 4.

An entity table 308 stores entity data, and is linked (e.g.,referentially) to an entity graph 304 and profile data 302. Entities forwhich records are maintained within the entity table 308 may includeindividuals, corporate entities, organizations, objects, places, events,and so forth. Regardless of entity type, any entity regarding which themessaging server system 108 stores data may be a recognized entity. Eachentity is provided with a unique identifier, as well as an entity typeidentifier (not shown).

The entity graph 304 stores information regarding relationships andassociations between entities. Such relationships may be social,professional (e.g., work at a common corporation or organization)interest-based or activity-based, merely for example.

The profile data 302 stores multiple types of profile data about aparticular entity. The profile data 302 may be selectively used andpresented to other users of the messaging system 100, based on privacysettings specified by a particular entity. Where the entity is anindividual, the profile data 302 includes, for example, a user name,telephone number, address, settings (e.g., notification and privacysettings), as well as a user-selected avatar representation (orcollection of such avatar representations), if any. A particular usermay then selectively include one or more of these avatar representationswithin the content of messages communicated via the messaging system100, and on map interfaces displayed by messaging clients 104 to otherusers.

Where the entity is a group, the profile data 302 for the group maysimilarly include one or more avatar representations associated with thegroup, in addition to the group name, members, and various settings(e.g., notifications) for the relevant group.

The database 124 further includes a travel parameters table 318 forstoring respective travel parameters for users. While the travelparameters table 318 is depicted as separate from the profile data 302,it is possible for the travel parameters table 318 to be included aspart of the profile data 302. Thus, each entity/user may have respectivetravel parameters associated therewith. Examples of travel parametersinclude, but are not limited to: travel schedules, transportationschedules, general locations, specific venues or landmarks, activities,participants (e.g., friends who are participating in all or part of thetraveling) and/or topics of interest.

The messaging system 100 may populate the travel parameters table 318based on user-submitted content provided within the messaging client 104(e.g., content within message threads, and/or in association withtravel-planning user interfaces provided by the messaging system 100).Alternatively or in addition, the messaging system 100 may populate thedatabase 124 based on content from third-party applications (e.g.,content from third-party email/text message applications, calendarapplications, flight applications, hotel applications, etc.). In one ormore embodiments, a user may opt-in and/or otherwise authorizepopulating the travel parameters table 318 with content from within themessaging system 100 and/or from third-party applications.

The database 124 also stores augmentation data, such as overlays orfilters, in an augmentation table 310. The augmentation data isassociated with and applied to videos (for which data is stored in avideo table 314) and images (for which data is stored in an image table316).

Filters, in one example, are overlays that are displayed as overlaid onan image or video during presentation to a recipient user. Filters maybe of various types, including user-selected filters from a set offilters presented to a sending user by the messaging client 104 when thesending user is composing a message. Other types of filters includegeolocation filters (also known as geo-filters), which may be presentedto a sending user based on geographic location. For example, geolocationfilters specific to a neighborhood or special location may be presentedwithin a user interface by the messaging client 104, based ongeolocation information determined by a Global Positioning System (GPS)unit of the client device 102.

Another type of filter is a data filter, which may be selectivelypresented to a sending user by the messaging client 104, based on otherinputs or information gathered by the client device 102 during themessage creation process. Examples of data filters include currenttemperature at a specific location, a current speed at which a sendinguser is traveling, battery life for a client device 102, or the currenttime.

Other augmentation data that may be stored within the image table 316includes augmented reality content items (e.g., corresponding toapplying Lenses or augmented reality experiences). An augmented realitycontent item may be a real-time special effect and sound that may beadded to an image or a video.

As described above, augmentation data includes augmented reality contentitems, overlays, image transformations, AR images, and similar termsrefer to modifications that may be applied to image data (e.g., videosor images). This includes real-time modifications, which modify an imageas it is captured using device sensors (e.g., one or multiple cameras)of a client device 102 and then displayed on a screen of the clientdevice 102 with the modifications. This also includes modifications tostored content, such as video clips in a gallery that may be modified.For example, in a client device 102 with access to multiple augmentedreality content items, a user can use a single video clip with multipleaugmented reality content items to see how the different augmentedreality content items will modify the stored clip. For example, multipleaugmented reality content items that apply different pseudorandommovement models can be applied to the same content by selectingdifferent augmented reality content items for the content. Similarly,real-time video capture may be used with an illustrated modification toshow how video images currently being captured by sensors of a clientdevice 102 would modify the captured data. Such data may simply bedisplayed on the screen and not stored in memory, or the contentcaptured by the device sensors may be recorded and stored in memory withor without the modifications (or both). In some systems, a previewfeature can show how different augmented reality content items will lookwithin different windows in a display at the same time. This can, forexample, enable multiple windows with different pseudorandom animationsto be viewed on a display at the same time.

Data and various systems using augmented reality content items or othersuch transform systems to modify content using this data can thusinvolve detection of objects (e.g., faces, hands, bodies, cats, dogs,surfaces, objects, etc.), tracking of such objects as they leave, enter,and move around the field of view in video frames, and the modificationor transformation of such objects as they are tracked. In variousembodiments, different methods for achieving such transformations may beused. Some examples may involve generating a three-dimensional meshmodel of the object or objects, and using transformations and animatedtextures of the model within the video to achieve the transformation. Inother examples, tracking of points on an object may be used to place animage or texture (which may be two dimensional or three dimensional) atthe tracked position. In still further examples, neural network analysisof video frames may be used to place images, models, or textures incontent (e.g., images or frames of video). Augmented reality contentitems thus refer both to the images, models, and textures used to createtransformations in content, as well as to additional modeling andanalysis information needed to achieve such transformations with objectdetection, tracking, and placement.

Real-time video processing can be performed with any kind of video data(e.g., video streams, video files, etc.) saved in a memory of acomputerized system of any kind. For example, a user can load videofiles and save them in a memory of a device, or can generate a videostream using sensors of the device. Additionally, any objects can beprocessed using a computer animation model, such as a human's face andparts of a human body, animals, or non-living things such as chairs,cars, or other objects.

In some examples, when a particular modification is selected along withcontent to be transformed, elements to be transformed are identified bythe computing device, and then detected and tracked if they are presentin the frames of the video. The elements of the object are modifiedaccording to the request for modification, thus transforming the framesof the video stream. Transformation of frames of a video stream can beperformed by different methods for different kinds of transformation.For example, for transformations of frames mostly referring to changingforms of object's elements characteristic points for each element of anobject are calculated (e.g., using an Active Shape Model (ASM) or otherknown methods). Then, a mesh based on the characteristic points isgenerated for each of the at least one element of the object. This meshused in the following stage of tracking the elements of the object inthe video stream. In the process of tracking, the mentioned mesh foreach element is aligned with a position of each element. Then,additional points are generated on the mesh. A first set of first pointsis generated for each element based on a request for modification, and aset of second points is generated for each element based on the set offirst points and the request for modification. Then, the frames of thevideo stream can be transformed by modifying the elements of the objecton the basis of the sets of first and second points and the mesh. Insuch method, a background of the modified object can be changed ordistorted as well by tracking and modifying the background.

In some examples, transformations changing some areas of an object usingits elements can be performed by calculating characteristic points foreach element of an object and generating a mesh based on the calculatedcharacteristic points. Points are generated on the mesh, and thenvarious areas based on the points are generated. The elements of theobject are then tracked by aligning the area for each element with aposition for each of the at least one element, and properties of theareas can be modified based on the request for modification, thustransforming the frames of the video stream. Depending on the specificrequest for modification properties of the mentioned areas can betransformed in different ways. Such modifications may involve changingcolor of areas; removing at least some part of areas from the frames ofthe video stream; including one or more new objects into areas which arebased on a request for modification; and modifying or distorting theelements of an area or object. In various embodiments, any combinationof such modifications or other similar modifications may be used. Forcertain models to be animated, some characteristic points can beselected as control points to be used in determining the entirestate-space of options for the model animation.

In some examples of a computer animation model to transform image datausing face detection, the face is detected on an image with use of aspecific face detection algorithm (e.g., Viola-Jones). Then, an ActiveShape Model (ASM) algorithm is applied to the face region of an image todetect facial feature reference points.

In other examples, other methods and algorithms suitable for facedetection can be used. For example, in some embodiments, features arelocated using a landmark, which represents a distinguishable pointpresent in most of the images under consideration. For facial landmarks,for example, the location of the left eye pupil may be used. If aninitial landmark is not identifiable (e.g., if a person has aneyepatch), secondary landmarks may be used. Such landmark identificationprocedures may be used for any such objects. In some examples, a set oflandmarks forms a shape. Shapes can be represented as vectors using thecoordinates of the points in the shape. One shape is aligned to anotherwith a similarity transform (allowing translation, scaling, androtation) that minimizes the average Euclidean distance between shapepoints. The mean shape is the mean of the aligned training shapes.

In some examples, a search for landmarks from the mean shape aligned tothe position and size of the face determined by a global face detectoris started. Such a search then repeats the steps of suggesting atentative shape by adjusting the locations of shape points by templatematching of the image texture around each point and then conforming thetentative shape to a global shape model until convergence occurs. Insome systems, individual template matches are unreliable, and the shapemodel pools the results of the weak template matches to form a strongeroverall classifier. The entire search is repeated at each level in animage pyramid, from coarse to fine resolution.

A transformation system can capture an image or video stream on theclient device 102 and perform complex image manipulations locally on theclient device 102 while maintaining a suitable user experience,computation time, and power consumption. The complex image manipulationsmay include size and shape changes, emotion transfers (e.g., changing aface from a frown to a smile), state transfers (e.g., aging a subject,reducing apparent age, changing gender), style transfers, graphicalelement application, and any other suitable image or video manipulationimplemented by a convolutional neural network that has been configuredto execute efficiently on the client device 102.

In some examples, a computer animation model to transform image data canbe used by a system where a user may capture an image or video stream ofthe user (e.g., a selfie) using a client device 102 having a neuralnetwork operating as part of a messaging client 104 operating on theclient device 102. The transformation system operating within themessaging client 104 determines the presence of a face within the imageor video stream and provides modification icons associated with acomputer animation model to transform image data, or the computeranimation model can be present as associated with an interface describedherein. The modification icons include changes that may be the basis formodifying the user's face within the image or video stream as part ofthe modification operation. Once a modification icon is selected, thetransform system initiates a process to convert the image of the user toreflect the selected modification icon (e.g., generate a smiling face onthe user). A modified image or video stream may be presented in agraphical user interface displayed on the client device 102 as soon asthe image or video stream is captured, and a specified modification isselected. The transformation system may implement a complexconvolutional neural network on a portion of the image or video streamto generate and apply the selected modification. That is, the user maycapture the image or video stream and be presented with a modifiedresult in real-time or near real-time once a modification icon has beenselected. Further, the modification may be persistent while the videostream is being captured, and the selected modification icon remainstoggled. Machine taught neural networks may be used to enable suchmodifications.

The graphical user interface, presenting the modification performed bythe transform system, may supply the user with additional interactionoptions. Such options may be based on the interface used to initiate thecontent capture and selection of a particular computer animation model(e.g., initiation from a content creator user interface). In variousembodiments, a modification may be persistent after an initial selectionof a modification icon. The user may toggle the modification on or offby tapping or otherwise selecting the face being modified by thetransformation system and store it for later viewing or browse to otherareas of the imaging application. Where multiple faces are modified bythe transformation system, the user may toggle the modification on oroff globally by tapping or selecting a single face modified anddisplayed within a graphical user interface. In some embodiments,individual faces, among a group of multiple faces, may be individuallymodified, or such modifications may be individually toggled by tappingor selecting the individual face or a series of individual facesdisplayed within the graphical user interface.

A story table 312 stores data regarding collections of messages andassociated image, video, or audio data, which are compiled into acollection (e.g., a Story or a gallery). The creation of a particularcollection may be initiated by a particular user (e.g., each user forwhich a record is maintained in the entity table 308). A user may createa “personal Story” in the form of a collection of content that has beencreated and sent/broadcast by that user. To this end, the user interfaceof the messaging client 104 may include an icon that is user-selectableto enable a sending user to add specific content to his or her personalStory.

A collection may also constitute a “live Story,” which is a collectionof content from multiple users that is created manually, automatically,or using a combination of manual and automatic techniques. For example,a “live Story” may constitute a curated stream of user-submitted contentfrom varies locations and events. Users whose client devices havelocation services enabled and are at a common location event at aparticular time may, for example, be presented with an option, via auser interface of the messaging client 104, to contribute content to aparticular live Story. The live Story may be identified to the user bythe messaging client 104, based on his or her location. The end resultis a “live Story” told from a community perspective.

A further type of content collection is known as a “location Story,”which enables a user whose client device 102 is located within aspecific geographic location (e.g., on a college or university campus)to contribute to a particular collection. In some examples, acontribution to a location Story may require a second degree ofauthentication to verify that the end user belongs to a specificorganization or other entity (e.g., is a student on the universitycampus).

As mentioned above, the video table 314 stores video data that, in oneexample, is associated with messages for which records are maintainedwithin the message table 306. Similarly, the image table 316 storesimage data associated with messages for which message data is stored inthe entity table 308. The entity table 308 may associate variousaugmentations from the augmentation table 310 with various images andvideos stored in the image table 316 and the video table 314.

FIG. 4 is a schematic diagram illustrating a structure of a message 400,according to some examples, generated by a messaging client 104 forcommunication to a further messaging client 104 or the messaging server116. The content of a particular message 400 is used to populate themessage table 306 stored within the database 124, accessible by themessaging server 116. Similarly, the content of a message 400 is storedin memory as “in-transit” or “in-flight” data of the client device 102or the application servers 114. A message 400 is shown to include thefollowing example components:

-   -   message identifier 402: a unique identifier that identifies the        message 400.    -   message text payload 404: text, to be generated by a user via a        user interface of the client device 102, and that is included in        the message 400.    -   message image payload 406: image data, captured by a camera        component of a client device 102 or retrieved from a memory        component of a client device 102, and that is included in the        message 400. Image data for a sent or received message 400 may        be stored in the image table 316.    -   message video payload 408: video data, captured by a camera        component or retrieved from a memory component of the client        device 102, and that is included in the message 400. Video data        for a sent or received message 400 may be stored in the video        table 314.    -   message audio payload 410: audio data, captured by a microphone        or retrieved from a memory component of the client device 102,        and that is included in the message 400.    -   message augmentation data 412: augmentation data (e.g., filters,        stickers, or other annotations or enhancements) that represents        augmentations to be applied to message image payload 406,        message video payload 408, or message audio payload 410 of the        message 400. Augmentation data for a sent or received message        400 may be stored in the augmentation table 310.    -   message duration parameter 414: parameter value indicating, in        seconds, the amount of time for which content of the message        (e.g., the message image payload 406, message video payload 408,        message audio payload 410) is to be presented or made accessible        to a user via the messaging client 104.    -   message geolocation parameter 416: geolocation data (e.g.,        latitudinal and longitudinal coordinates) associated with the        content payload of the message. Multiple message geolocation        parameter 416 values may be included in the payload, each of        these parameter values being associated with respect to content        items included in the content (e.g., a specific image into        within the message image payload 406, or a specific video in the        message video payload 408).    -   message story identifier 418: identifier values identifying one        or more content collections (e.g., “Stories” identified in the        story table 312) with which a particular content item in the        message image payload 406 of the message 400 is associated. For        example, multiple images within the message image payload 406        may each be associated with multiple content collections using        identifier values.    -   message tag 420: each message 400 may be tagged with multiple        tags, each of which is indicative of the subject matter of        content included in the message payload. For example, where a        particular image included in the message image payload 406        depicts an animal (e.g., a lion), a tag value may be included        within the message tag 420 that is indicative of the relevant        animal. Tag values may be generated manually, based on user        input, or may be automatically generated using, for example,        image recognition.    -   message sender identifier 422: an identifier (e.g., a messaging        system identifier, email address, or device identifier)        indicative of a user of the Client device 102 on which the        message 400 was generated and from which the message 400 was        sent.    -   message receiver identifier 424: an identifier (e.g., a        messaging system identifier, email address, or device        identifier) indicative of a user of the client device 102 to        which the message 400 is addressed.

The contents (e.g., values) of the various components of message 400 maybe pointers to locations in tables within which content data values arestored. For example, an image value in the message image payload 406 maybe a pointer to (or address of) a location within an image table 316.Similarly, values within the message video payload 408 may point to datastored within a video table 314, values stored within the messageaugmentations 412 may point to data stored in an augmentation table 310,values stored within the message story identifier 418 may point to datastored in a story table 312, and values stored within the message senderidentifier 422 and the message receiver identifier 424 may point to userrecords stored within an entity table 308.

FIG. 5 is an interaction diagram illustrating a process 500 forproviding augmented reality content relating to user-submitted reviewsin association with traveling, in accordance with some exampleembodiments. For explanatory purposes, the process 500 is primarilydescribed herein with reference to the messaging client 104 of FIG. 1,and the object detection system 212 and the user-submitted review system214 of FIG. 2. However, one or more blocks (or operations) of theprocess 500 may be performed by one or more other components, and/or byother suitable devices. Further for explanatory purposes, the blocks (oroperations) of the process 500 are described herein as occurring inserial, or linearly. However, multiple blocks (or operations) of theprocess 500 may occur in parallel or concurrently. In addition, theblocks (or operations) of the process 500 need not be performed in theorder shown and/or one or more blocks (or operations) of the process 500need not be performed and/or can be replaced by other operations. Theprocess 500 may be terminated when its operations are completed. Inaddition, the process 500 may correspond to a method, a procedure, analgorithm, etc.

The messaging client 104 may be associated with a respective user of themessaging server system 108, and the user may be associated with a useraccount of the messaging server system 108. As noted above, the user maybe identified by the messaging server system 108 based on a uniqueidentifier (e.g., a messaging system identifier, email address and/or adevice identifier) associated with the user account for that user. Inaddition, the messaging server system 108 may implement and/or work inconjunction with the social network server 120 which is configured toidentify other users (e.g., friends) with which a particular user hasrelationships.

As described herein, the messaging client 104 (e.g., in conjunction withthe messaging server system 108) receives a user request to perform ascan operation on a captured image (e.g., a live video feed, or aphoto/video selected from a photo library). The messaging client 104determines travel parameters (e.g., travel schedules, transportationschedules, general locations, specific venues or landmarks, activities,participants and/or topics of interest) associated with the request. Themessaging client also determines attribute(s) of an object depicted inthe captured image. Based on the travel parameter(s) and attribute(s),the messaging client 104 selects a user interface from among multiplecandidate user interfaces relating to user-submitted reviews. Forexample, the selected user interface may correspond with adding, editingor deleting a personal user review regarding a business, product and/orservice. In another example, the selected user interface may correspondwith displaying a set of existing user-submitted reviews for thebusiness, product and/or service. The messaging client 104 displays anaugmented reality content item (e.g., corresponding to an augmentedreality experience), which includes the selected user interface,together with the captured image.

At block 502, the messaging client 104 receives user input to perform ascan operation on a captured image. As described herein, performing ascan operation corresponds with identifying objects depicted in thecaptured image. In one or more embodiments, the messaging client 104activates the camera of the client device 102 (e.g., upon startup of themessaging client 104). The messaging client 104 allows a user to requestto scan one or more items in a camera feed captured by the camera. Inone or more embodiments, the messaging client 104 detects physicalcontact between a finger of the user's hand and a region of the touchscreen for a threshold period of time (e.g., corresponding to apress-and-hold gesture). For example, the messaging client 104determines that the user touched and held their finger on the screen fora threshold time (e.g., two seconds).

In an alternative embodiment, the press-and-hold gesture may beperformed in association with a carousel interface (e.g., which isseparate from a startup interface, as discussed below with respect toFIGS. 6A-6B). Within the carousel interface, an augmented realitycontent item, for modifying a captured image to include augmentedreality content, may already be selected prior to receiving the userinput. With respect to the press-and-hold gesture, the augmented realitycontent item may in some embodiments include a scan prompt which promptsthe user for input to perform the scan operation. For example, the scanprompt may include text (e.g., “press and hold to scan”) prompting theuser for the press-and-hold gesture within a graphical boundary defininga predefined screen region.

As an alternative to the press-and-hold gesture, the messaging client104 may receive user selection of a dedicated scan option (e.g., a scanbutton) presented together with the camera feed. Thus, in response to auser request to perform a scan operation, the messaging client 104processes the captured image (e.g., a live video feed) to identifymultiple object(s) in the image. It is also possible for the capturedimage to correspond with an image/video stored in association with theuser of the client device 102, for example, within a photo library(e.g., associated with an operating system of the client device 102and/or associated with a user profile with respect to the messagingsystem 100).

At block 504, the messaging client 104 determines a travel parameterassociated with the user input. As noted above with respect to thetravel parameters table 318, the messaging client 104 in conjunctionwith the messaging system 100 may be configured to access (e.g., basedon appropriate user permissions) data relating to travel by the user,and to populate the travel parameters table 318 accordingly. The travelparameters table 318 may store travel parameters corresponding touser-submitted content provided within the messaging client 104 (e.g.,content within message threads, and/or in association withtravel-planning user interfaces provided by the messaging system 100).In another example, the travel parameters table 318 may store travelparameters corresponding to content from third-party applications (e.g.,content from email/text messages, a calendar application, a flightapplication, a hotel application). In one or more embodiments, thetravel parameters indicate one or more of: travel schedule(s),transportation schedule(s), general location(s) (e.g., cities, states,etc.), specific venues or landmarks, activities, participants (e.g.,friends) and/or topics of interest.

At operation 506, the messaging client 104 sends, to the objectdetection system 212, a request to identify objects in the capturedimage (operation 506). The request may include the image data itself(e.g., if being captured in real time and/or stored locally on theclient device 102). Alternatively, the request may reference a remoteimage (e.g., if stored in association with a user profile with respectto the messaging system 100).

In response to the request, the object detection system 212 determinesattribute(s) of object(s) in the captured image (block 508). As notedabove, the object detection system 212 may correspond to a subsystem ofthe messaging system 100, and may be supported on the client side by themessaging client 104 and/or on the server side by the applicationservers 114. In one or more embodiments, the detection of object(s)within a captured image may be implemented client side, server sideand/or a combination of client side and server side.

As further noted above, the object detection system 212 is configured toimplement or otherwise access object recognition algorithms (e.g.,including machine learning algorithms) configured to scan a capturedimage, and to detect/track the movement of objects within the image. Forexample, the object detection system 212 may detect object(s) in thecaptured image that relate to travel (e.g., a landmark, a piece of art,a product for sale at a particular venue, etc.). In another example, theobject detection system 212 may detect an object in the imagecorresponding to a barcode (e.g., a Universal Product Code (UPC) code,QR code, or the like). In yet another example, the object detectionsystem 212 may be configured to detect text depicted within the image,and to convert the depicted text into machine-encoded text (e.g., usingoptical character recognition (OCR)). In one or more embodiments, theobject detection system 212 is configured to detect and process acombination of object(s), barcode(s) and/or text depicted in a capturedimage (e.g., relating to travel).

The object detection system 212 is further configured to determine orotherwise access attributes of the identified objects. For example, withrespect to objects associated with user travel, the object detectionsystem 212 may determine attributes such as corresponding businessnames, logos, product names, service names, brand names, modelnames/numbers, and the like. The object detection system 212 may furtherdetermine attribute(s) corresponding to general information, such asbusiness addresses, phone numbers, physical product attributes (e.g.,items for sale, food, menus) and/or associated dates. As noted above,the object detection system 212 may determine attribute(s) correspondingto a keyword that has been sponsored by a third party. For example, athird party (e.g., associated with a museum, venue or other business)may sponsor or pay for certain keywords (e.g., types of food) to beranked higher than others. In response to determining that a givenattribute corresponds to a sponsored keyword, the object detectionsystem 212 may provide for a higher ranking of that attribute relativeto other attributes.

The object detection system 212 sends, to the messaging client 104, theattribute(s) of the object(s) to the messaging client 104 (operation510). In doing so, the object detection system 212 may further provideranking information of the attribute(s). In one or more embodiments, themessaging client 104 determines that the attribute(s) of the object(e.g., business name, product/service name, venue) and environmentalfactors (e.g., device geolocation and time) correspond with one or moreof the travel parameters. For example, such correspondence may be basedon matching (e.g., meeting a threshold comparison value with respect to)time periods, locations, topics and/or activities of the objectattribute(s)/environmental factors with those of the travel parameters.

At operation 512, the messaging client 104 sends, to the user-submittedreview system 214, a request to select a type of user interface (e.g.,or to select a set of user interface elements) relating touser-submitted reviews. The request may include the travel parameter(s),attribute(s) and/or environmental factors (e.g., device geolocation,time, and the like). As noted above, the user-submitted review system214 may correspond to a subsystem of the messaging system 100, and maybe supported on the client side by the messaging client 104 and/or onthe server side by the application servers 114. In one or moreembodiments, selection of a user interface based on attribute(s), travelparameter(s) and/or environmental factors via the user-submitted reviewsystem 214 may be implemented client side, server side and/or acombination of client side and server side.

As noted above, the user-submitted review system 214 is configured toquery third-party services using the search parameters. For example, thethird-party services may correspond to applications (e.g., apps)directed to maintaining and publishing user-submitted reviews ofbusinesses (e.g., and their products/services). The third-party servicesmay facilitate in surfacing user interfaces that relate to user reviewsand/or ratings. Alternatively or in addition, the messaging system 100may itself implement a user-submitted reviews service, where themessaging system 100 manages and stores user-submitted reviews withinthe database 124. Thus, as an alternative or supplement to queryingthird-party services (e.g., directed to user-submitted reviews), theuser-submitted review system 214 may be configured to query the database124 to present user interface elements relating to user reviews and/orratings.

In one or more embodiments, the user-submitted review system 214 (e.g.,in conjunction with the third-party services) is configured to selectfrom among different types of user interfaces (e.g., or to select a setof user interface elements) that relate to user-submitted reviews.Example types of such user interfaces include, but are not limited touser interfaces to: add, edit or modify a personal review (e.g., withuser-submitted comments and/or photos); add, edit or modify a personalrating (e.g., from 1 to 5 stars); view a set of existing reviews; and/orview a set of existing ratings. The user interfaces may provide foradding, editing, modifying and/or viewing reviews/ratings with respectto a business as a whole, or respective products and/or services offeredby a business.

Thus, in response to the request sent in association with operation 512,the user-submitted review system 214 selects a user interface from amongthe available types of user interfaces (block 514). For example, theuser-submitted review system 214 may select a user interface from amongpreset user interfaces that relate to user-submitted reviews.Alternatively or in addition, the user-submitted review system 214 maygenerate a customized user interface by selecting a set of userinterface elements, each of which relate to user-submitted reviews. Theselection of a preset user interface and/or set of user interfaceelements may be based on the travel parameter(s), the attribute(s)(e.g., with ranking information) and/or the environmental factors.

In one example, the attribute(s) (e.g., color, size, machine-encodedtext resulting from OCR) of an object depicted in a captured image mayindicate signage of a storefront such as a restaurant. Moreover, thedevice geolocation may indicate a known location of the restaurant, andthe travel parameters may indicate a time shortly after (e.g., within 30minutes after) a planned restaurant visit. Based on these indications,the user-submitted review system 214 may select a user interface foradding, editing, or deleting a personal rating or review of therestaurant.

In another example, the attribute(s) (e.g., color, size, machine-encodedtext resulting from OCR) of an object detected in a captured image mayindicate text included in a menu within the restaurant (e.g., userselection of a depicted menu item, such as a “fish taco”). Moreover, thedevice geolocation may indicate that the device is positioned inside ofthe restaurant, and the travel parameters may indicate a time during aplanned visit to the restaurant. Based on these indications, theuser-submitted review system 214 may select a user interface fordisplaying a set of existing user-submitted reviews for the selectedmenu item (e.g., fish taco), other depicted menu items, and/or generalreviews of the restaurant.

The user-submitted review system 214 may calculate respective relevancyscores for types of user interfaces or interface elements, for example,based on a number or frequency of confirmed matches between searchparameters. The relevancy scores may be used for ranking the differenttypes of user interfaces as part of the process of selecting a userinterface related to user-submitted reviews. At operation 516, theuser-submitted review system 214 sends an indication of the selecteduser interface (e.g., or interface elements) to the messaging client104, together with relevancy scores, if applicable.

As noted above with respect to block 502, the user input to perform thescan operation may have been received within a carousel interface, withan augmented reality content item already having been selected.Alternatively, the user input may have been received upon startup of themessaging client 104 (e.g., within a startup interface), in which casean augmented reality content item had not yet been selected.

In a case where an augmented reality content item had not been selected,the augmentation system 208 may provide for selecting an augmentedreality content item. In one or more embodiments, the user-submittedreview system 214 may correspond to a subsystem of the augmentationsystem 208. Thus, while the example of FIG. 5 depicts operations 512-516as occurring between the messaging client 104 and the user-submittedreview system 214, it is possible that these operations are performed(at least in part) between the messaging client 104 and the augmentationsystem 208. For example, the augmentation system 208 may be configuredto communicate with and query the above-discussed third-party servicesrelating to user-submitted reviews. Alternatively or in addition, theuser-submitted review system 214 may be a system which is separate fromthe augmentation system 208. For example, the messaging client 104and/or the augmentation system 208 may communicate with theuser-submitted review system 214 in order to select the user interfacerelating to user-submitted reviews.

In one or more embodiments, the indication of the selected userinterface obtained at block 514 and sent at operation 516 may correspondto a data structure which includes values corresponding touser-submitted reviews. The data structure may be usable by a givenaugmented reality content item to generate augmented reality contentwhich includes the selected user interface. In this manner, theaugmented reality content item may correspond to a template withplaceholders for the user interface, the interface elements and/or theuser interface values.

Alternatively or in addition, the indication of the selected userinterface obtained at block 514 and sent at operation 516 may itselfcorrespond to the augmented reality content item, which is selectedamong plural augmented reality content items stored in the augmentationtable 310. In this manner, the augmented reality content item may havethe selected user the interface (e.g., and/or interface elements andvalues) integrated therein.

Following operation 516, the messaging client 104 displays the augmentedreality content item, which includes the selected user interface,together with the captured image (block 518). As discussed with respectto FIGS. 6A-6B and 7A-7B below, the augmented reality content item maybe configured to modify the captured image with augmented realitycontent (e.g., overlays, visual effects, and the like) that includes theselected user interface provided or indicated by the user-submittedreview system 214. Moreover, the user-submitted review system 214 isconfigured to continue interaction with the third-party app (e.g., whichhosts the user-submitted reviews), for example, via appropriateinterfaces (e.g., routines and protocols) that can be called or queriedby the user-submitted review system 214 in order to invoke functionalityof the third-party service/app. For example, the user-submitted reviewsystem 214 may update a set of reviews stored in association with athird-party app, in a case where the user adds, edits or deletes apersonal review presented in association with the augmented realitycontent item.

Thus, the messaging client 104, in conjunction with the messaging serversystem 108, provides for providing augmented reality content with acaptured image. The selection of the augmented reality content andselection of user interface(s) relating to user-submitted reviews isbased on attribute(s) of objects detected in the image, as well astravel parameters associated with an account of the user.

FIG. 6A illustrates an example user interface 600 a in which a userrequests to display augmented reality content relating to user-submittedreviews in association with traveling, in accordance with some exampleembodiments. The user interface 600 a includes a captured image 602, acamera selection button 604, a flash button 606, a scan prompt 608, acarousel interface 612, a selected AR icon 614 and a scan button 616.

In one or more embodiments, a user of the client device 102 providestouch input 610 to the messaging client 104, to perform a scan operationto identify objects in the captured image 602 (e.g., a live video feedfrom a rear-facing camera). In the example of FIG. 6A, the touch input610 (e.g., a press- and hold gesture) is received by the messagingclient 104 in association with a scan prompt 608 which defines agraphical boundary on the device screen. As noted above, the scan prompt608 may be provided by an augmented reality content item associated withthe selected AR icon 614. However, the touch input may correspond withuser selection of a dedicated button (e.g., the scan button 616). In analternative embodiment, the user may have selected an interface element(e.g., an image selection button) to perform a scan on a photo/videoselected from a photo library (e.g., stored locally on the client device102 or stored remotely in association with a user account of themessaging system 100). As shown in FIG. 6A, the captured image 602depicts the signage of a restaurant.

In one or more embodiments, during the scan operation, the messagingclient 104 is configured to display a scanning graphic (not shown) toindicate that the messaging client 104 is performing the scan operation.For example, the scanning graphic corresponds to an animation that isdisplayed for the duration of the scan (e.g., a predetermined durationof 2 seconds).

In response to receiving the touch input, the messaging client 104(e.g., in conjunction with the object detection system 212) isconfigured to detect objects in the captured image 602, as well asattribute(s) of the detected objects. For example, the object detectionsystem 212 detects attribute(s) associated with the signage (e.g.,color, size, machine-encoded text of the restaurant name based on OCR).

In addition, the messaging client 104 determines travel parametersassociated with the touch input (e.g., one or more of a travel schedule,a transportation schedule, a general location, a specific venue orlandmark, an activity, a list of participants, or a topic of interest).In one or more embodiments, the messaging client 104 determines that theattribute(s) of the signage (e.g., name of restaurant) correspond withone or more of the travel parameters (e.g., corresponding to arestaurant reservation). In response, the messaging client 104 (inconjunction with the user-submitted review system 214 and/or theaugmentation system 208) is configured to select a user interface, fromamong multiple available user interfaces related to user-submittedreviews, for presenting in association with an augmented reality contentitem, as discussed below with respect to FIG. 6B.

In one or more embodiments, the user interface 600 a includes the cameraselection button 604 for switching between the rear-facing andfront-facing camera of the client device 102. In addition, the userinterface 600 a includes the flash button 606 for activating ordeactivating a flash with respect to the captured image 602.

In one or more embodiments, the user interface 600 a includes thecarousel interface 612 which allows the user to cycle through and/orselect different augmented reality content items to apply/display withrespect to the captured image 602. Each of the available augmentedreality content items is represented by an icon which is user-selectablefor switching to the respective augmented reality content item. In oneor more embodiments, the icon corresponding to an active augmentedreality content item (e.g., a selected AR icon 614) is displayed in adifferent manner relative to (e.g., larger than) the remaining icons. Inresponse to user selection of the selected AR icon 614, the messagingclient 104 provides for generating a media content item which includesan image (e.g., in response to a press/tap gesture of the selected ARicon 614) and/or a video (e.g., in response to a press-and-hold gestureof the selected AR icon 614) of the screen content, for example, to sendto friends, include in a Story, and the like.

FIG. 6B illustrates an example user interface 600 b for displayingaugmented reality content relating to user-submitted reviews inassociation with traveling, in accordance with some example embodiments.The user interface 600 b depicts the captured image 602, the carouselinterface 612, the selected AR icon 614 and the scan button 616 of FIG.6A.

Moreover, the user interface 600 b includes a supplemental content card618 and a user rating interface 620. In one or more implementations, thesupplemental content card 618 and the user rating interface 620 may bepresented in association with augmented reality content provided viaselection of the selected AR icon 614.

In the example of FIG. 6B, the user interface 600 b provides for addinga personal rating/review for a restaurant in association with athird-party service (e.g., a third-party app). For example, thethird-party app may provide for maintaining and publishinguser-submitted reviews of businesses.

As noted above with respect to FIG. 6A, the user-submitted review system214 may have selected the user interface 600 b from among available userinterfaces/interface elements relating to user-submitted reviews. Forexample, the user-submitted review system 214 may have selected theinterface elements 618-620 based on the signage of the storefrontdepicted in the captured image 602, the device geolocation and/or travelparameters indicating a time shortly after a planned restaurant visit.

In one or more embodiments, the supplemental content card 618 ispresented as an overlay with interface elements (e.g., name of therestaurant, rating summary as provided by the third-party service)associated with the depicted restaurant. The supplemental content card618 further includes a user-selectable link for redirecting to a menupage associated with the third-party app. While the supplemental contentcard 618 depicts a link for redirecting to the menu page, it is possiblefor the link to instead redirect to another page associated with thethird-party app (e.g., a reservation page, an expanded ratings page withreviews, and the like).

In one or more embodiments, the user rating interface 620 is presentedas an overlay with user-selectable interface elements for adding apersonal rating for the business. The user-submitted review system 214is configured to interact with the third-party app (e.g., viacorresponding application interfaces), to update a set of reviews forthe restaurant to include the added personal review.

FIG. 7A illustrates an example user interface 700 a in which a userrequests to display augmented reality content relating to user-submittedreviews in association with traveling, in accordance with some exampleembodiments. The user interface 600 a includes a captured image 702, acarousel interface 706, a selected AR icon 708 and a scan button 710.

In one or more embodiments, the user interface 700 a may be presentedupon startup (e.g., as a startup interface) of the messaging client 104.A user of the client device 102 may provide touch input 704 to themessaging client 104, to perform a scan operation to identify objects inthe captured image 702 (e.g., a live video feed from a rear-facingcamera). For example, the touch input 704 corresponds to apress-and-hold gesture (e.g., of at least one second) received within apredefined region of the device screen. Moreover, the touch input maycorrespond to user selection of a particular object. As shown in FIG.7A, captured image 602 depicts a restaurant menu, and the touch input704 corresponds to user selection of a particular menu item (e.g., fishtaco).

In one or more embodiments, during the scan operation, the messagingclient 104 is configured to display a scanning graphic (not shown) toindicate that the messaging client 104 is performing the scan operation.For example, the scanning graphic corresponds to an animation that isdisplayed for the duration of the scan (e.g., a predetermined durationof 2 seconds).

In response to receiving the touch input, the messaging client 104(e.g., in conjunction with the object detection system 212) isconfigured to detect objects in the captured image 602, as well asattribute(s) of the detected objects. For example, the object detectionsystem 212 detects attribute(s) associated with the menu (e.g., physicalfeatures of the menu, and/or machine-encoded text resulting from OCR ofthe menu such as restaurant name, menu items, and the user-selected“fish taco” menu item).

In addition, the messaging client 104 determines travel parametersassociated with the touch input (e.g., one or more of a travel schedule,a transportation schedule, a general location, a specific venue orlandmark, an activity, a list of participants, or a topic of interest).In one or more embodiments, the messaging client 104 determines that theattribute(s) of the menu correspond with one or more of the travelparameters. In response, the messaging client 104 (in conjunction withthe user-submitted review system 214 and/or the augmentation system 208)is configured to select a user interface and/or particular userinterface elements related to user-submitted reviews, for presenting inassociation with an augmented reality content item, as discussed belowwith respect to FIG. 7B.

Similar to the carousel interface 612 of FIG. 6A, the carousel interface706 of FIG. 7B allows the user to cycle through and/or select differentaugmented reality content items to apply/display with respect to thecaptured image 702. In addition, the icon corresponding to an activeaugmented reality content item (e.g., a selected AR icon 708) isuser-selectable to generate a media content item which includes an image(e.g., in response to a press/tap gesture) and/or a video (e.g., inresponse to a press-and-hold gesture).

FIG. 7B illustrates an example user interface 700 b for displayingaugmented reality content relating to user-submitted reviews inassociation with traveling, in accordance with some example embodiments.The user interface 700 b depicts the captured image 702 of FIG. 7A.

Moreover, the user interface 600 b includes user reviews 712. In one ormore implementations, the user reviews 712 may be presented inassociation with augmented reality content provided via selection of theselected AR icon 708.

In the example of FIG. 7B, the user interface 700 b provides fordisplaying a set of user-submitted reviews provided by a third-partyservice (e.g., a third-party app). For example, the third-party servicemay provide for maintaining and publishing user-submitted reviews ofbusinesses.

As noted above with respect to FIG. 7A, the user-submitted review system214 may have selected the user interface 700 b from among available userinterfaces relating to user-submitted reviews. For example, theuser-submitted review system 214 may have selected the interface elementof the user reviews 712 based on the menu depicted in the captured image702, the user selection of the menu item “fish taco,” the devicegeolocation and/or travel parameters indicating a time during a plannedrestaurant visit.

In one or more embodiments, the user reviews 712 are presented as anoverlay with each user-submitted review being represented by arespective supplemental content card. In one or more implementations,each review corresponds to a user-selectable link. User selection of areview may redirect to a corresponding review page associated with thethird-party app.

FIG. 8 is a flowchart illustrating a process 800 for providing augmentedreality content relating to user-submitted reviews in association withtraveling, in accordance with some example embodiments. For explanatorypurposes, the process 800 is primarily described herein with referenceto the messaging client 104 of FIG. 1, and the object detection system212 and the user-submitted review system 214 of FIG. 2. However, one ormore blocks (or operations) of the process 800 may be performed by oneor more other components, and/or by other suitable devices. Further forexplanatory purposes, the blocks (or operations) of the process 800 aredescribed herein as occurring in serial, or linearly. However, multipleblocks (or operations) of the process 800 may occur in parallel orconcurrently. In addition, the blocks (or operations) of the process 800need not be performed in the order shown and/or one or more blocks (oroperations) of the process 800 need not be performed and/or can bereplaced by other operations. The process 800 may be terminated when itsoperations are completed. In addition, the process 800 may correspond toa method, a procedure, an algorithm, etc.

The messaging client 104 receives a request to scan an image captured bya device camera (block 802). The image may correspond to a live feed ofa camera of the device. Alternatively or in addition, the image maycorrespond to a saved image included in a photo library associated withthe user.

The request may correspond to user selection of an interface element forperforming the scan. Alternatively or in addition, the request maycorrespond to a press-and-hold gesture performed within a predefinedportion of a screen of the device.

The messaging client 104 determines a travel parameter associated withthe request and an attribute of an object depicted in the image (block804). The attribute may be determined in conjunction with the objectdetection system 212. The travel parameter may indicate at least one ofa travel schedule, a transportation schedule, a general location, aspecific venue or landmark, an activity, a list of participants, or atopic of interest associated with travel by the user.

The messaging client 104 (e.g., in conjunction with the user-submittedreview system 214 and/or the augmentation system 208) selects, fromamong plural candidate user interfaces relating to user-submittedreviews, a user interface that corresponds to the travel parameter andthe attribute (block 806).

Selecting the user interface may further be based on a geolocation ofthe device.

The selected user interface may correspond to displaying a set ofuser-submitted reviews relating to the object. Alternatively or inaddition, the selected user interface may correspond to updating apersonal review relating to the object, the personal review beingincluded in a set of user-submitted reviews relating to the object.

The messaging client 104 displays an augmented reality content item,which includes the selected user interface, with the image (block 808).The messaging client 104 may select, from among plural augmented realitycontent items, the augmented reality content item based on the attributeand the travel parameter, and activate the selected augmented realitycontent item prior to the displaying. Alternatively or in addition, theaugmented reality content item may be selected prior to receiving therequest.

FIG. 9 is a schematic diagram illustrating an access-limiting process900, in terms of which access to content (e.g., an ephemeral message910, and associated multimedia payload of data) or a content collection(e.g., an ephemeral message group 906) may be time-limited (e.g., madeephemeral).

An ephemeral message 910 is shown to be associated with a messageduration parameter 914, the value of which determines an amount of timethat the ephemeral message 910 will be displayed to a receiving user ofthe ephemeral message 910 by the messaging client 104. In one example,an ephemeral message 910 is viewable by a receiving user for up to amaximum of 10 seconds, depending on the amount of time that the sendinguser specifies using the message duration parameter 914.

The message duration parameter 914 and the message receiver identifier424 are shown to be inputs to a message timer 912, which is responsiblefor determining the amount of time that the ephemeral message 910 isshown to a particular receiving user identified by the message receiveridentifier 424. In particular, the ephemeral message 910 will only beshown to the relevant receiving user for a time period determined by thevalue of the message duration parameter 914. The message timer 912 isshown to provide output to a more generalized ephemeral timer system202, which is responsible for the overall timing of display of content(e.g., an ephemeral message 910) to a receiving user.

The ephemeral message 910 is shown in FIG. 9 to be included within anephemeral message group 906 (e.g., a collection of messages in apersonal Story, or an event Story). The ephemeral message group 906 hasan associated group duration parameter 904, a value of which determinesa time duration for which the ephemeral message group 906 is presentedand accessible to users of the messaging system 100. The group durationparameter 904, for example, may be the duration of a music concert,where the ephemeral message group 906 is a collection of contentpertaining to that concert. Alternatively, a user (either the owninguser or a curator user) may specify the value for the group durationparameter 904 when performing the setup and creation of the ephemeralmessage group 906.

Additionally, each ephemeral message 910 within the ephemeral messagegroup 906 has an associated group participation parameter 902, a valueof which determines the duration of time for which the ephemeral message910 will be accessible within the context of the ephemeral message group906. Accordingly, a particular ephemeral message group 906 may “expire”and become inaccessible within the context of the ephemeral messagegroup 906, prior to the ephemeral message group 906 itself expiring interms of the group duration parameter 904. The group duration parameter904, group participation parameter 902, and message receiver identifier424 each provide input to a group timer 908, which operationallydetermines, firstly, whether a particular ephemeral message 910 of theephemeral message group 906 will be displayed to a particular receivinguser and, if so, for how long. Note that the ephemeral message group 906is also aware of the identity of the particular receiving user as aresult of the message receiver identifier 424.

Accordingly, the group timer 908 operationally controls the overalllifespan of an associated ephemeral message group 906, as well as anindividual ephemeral message 910 included in the ephemeral message group906. In one example, each and every ephemeral message 910 within theephemeral message group 906 remains viewable and accessible for a timeperiod specified by the group duration parameter 904. In a furtherexample, a certain ephemeral message 910 may expire, within the contextof ephemeral message group 906, based on a group participation parameter902. Note that a message duration parameter 914 may still determine theduration of time for which a particular ephemeral message 910 isdisplayed to a receiving user, even within the context of the ephemeralmessage group 906. Accordingly, the message duration parameter 914determines the duration of time that a particular ephemeral message 910is displayed to a receiving user, regardless of whether the receivinguser is viewing that ephemeral message 910 inside or outside the contextof an ephemeral message group 906.

The ephemeral timer system 202 may furthermore operationally remove aparticular ephemeral message 910 from the ephemeral message group 906based on a determination that it has exceeded an associated groupparticipation parameter 902. For example, when a sending user hasestablished a group participation parameter 902 of 24 hours fromposting, the ephemeral timer system 202 will remove the relevantephemeral message 910 from the ephemeral message group 906 after thespecified 24 hours. The ephemeral timer system 202 also operates toremove an ephemeral message group 906 when either the groupparticipation parameter 902 for each and every ephemeral message 910within the ephemeral message group 906 has expired, or when theephemeral message group 906 itself has expired in terms of the groupduration parameter 904.

In certain use cases, a creator of a particular ephemeral message group906 may specify an indefinite group duration parameter 904. In thiscase, the expiration of the group participation parameter 902 for thelast remaining ephemeral message 910 within the ephemeral message group906 will determine when the ephemeral message group 906 itself expires.In this case, a new ephemeral message 910, added to the ephemeralmessage group 906, with a new group participation parameter 902,effectively extends the life of an ephemeral message group 906 to equalthe value of the group participation parameter 902.

Responsive to the ephemeral timer system 202 determining that anephemeral message group 906 has expired (e.g., is no longer accessible),the ephemeral timer system 202 communicates with the messaging system100 (and, for example, specifically the messaging client 104) to causean indicium (e.g., an icon) associated with the relevant ephemeralmessage group 906 to no longer be displayed within a user interface ofthe messaging client 104. Similarly, when the ephemeral timer system 202determines that the message duration parameter 914 for a particularephemeral message 910 has expired, the ephemeral timer system 202 causesthe messaging client 104 to no longer display an indicium (e.g., an iconor textual identification) associated with the ephemeral message 910.

FIG. 10 is a diagrammatic representation of the machine 1000 withinwhich instructions 1006 (e.g., software, a program, an application, anapplet, an app, or other executable code) for causing the machine 1000to perform any one or more of the methodologies discussed herein may beexecuted. For example, the instructions 1006 may cause the machine 1000to execute any one or more of the methods described herein. Theinstructions 1006 transform the general, non-programmed machine 1000into a particular machine 1000 programmed to carry out the described andillustrated functions in the manner described. The machine 1000 mayoperate as a standalone device or may be coupled (e.g., networked) toother machines. In a networked deployment, the machine 1000 may operatein the capacity of a server machine or a client machine in aserver-client network environment, or as a peer machine in apeer-to-peer (or distributed) network environment. The machine 1000 maycomprise, but not be limited to, a server computer, a client computer, apersonal computer (PC), a tablet computer, a laptop computer, a netbook,a set-top box (STB), a personal digital assistant (PDA), anentertainment media system, a cellular telephone, a smartphone, a mobiledevice, a wearable device (e.g., a smartwatch), a smart home device(e.g., a smart appliance), other smart devices, a web appliance, anetwork router, a network switch, a network bridge, or any machinecapable of executing the instructions 1006, sequentially or otherwise,that specify actions to be taken by the machine 1000. Further, whileonly a single machine 1000 is illustrated, the term “machine” shall alsobe taken to include a collection of machines that individually orjointly execute the instructions 1006 to perform any one or more of themethodologies discussed herein. The machine 1000, for example, maycomprise the client device 102 or any one of a number of server devicesforming part of the messaging server system 108. In some examples, themachine 1000 may also comprise both client and server systems, withcertain operations of a particular method or algorithm being performedon the server-side and with certain operations of the particular methodor algorithm being performed on the client-side.

The machine 1000 may include processors 1002, memory 1010, andinput/output I/O components 1022, which may be configured to communicatewith each other via a bus 1020. In an example, the processors 1002(e.g., a Central Processing Unit (CPU), a Reduced Instruction SetComputing (RISC) Processor, a Complex Instruction Set Computing (CISC)Processor, a Graphics Processing Unit (GPU), a Digital Signal Processor(DSP), an Application Specific Integrated Circuit (ASIC), aRadio-Frequency Integrated Circuit (RFIC), another processor, or anysuitable combination thereof) may include, for example, a processor 1004and a processor 1008 that execute the instructions 1006. The term“processor” is intended to include multi-core processors that maycomprise two or more independent processors (sometimes referred to as“cores”) that may execute instructions contemporaneously. Although FIG.10 shows multiple processors 1002, the machine 1000 may include a singleprocessor with a single-core, a single processor with multiple cores(e.g., a multi-core processor), multiple processors with a single core,multiple processors with multiples cores, or any combination thereof.

The memory 1010 includes a main memory 1012, a static memory 1014, and astorage unit 1016, both accessible to the processors 1002 via the bus1020. The main memory 1010, the static memory 1014, and storage unit1016 store the instructions 1006 embodying any one or more of themethodologies or functions described herein. The instructions 1006 mayalso reside, completely or partially, within the main memory 1012,within the static memory 1014, within machine-readable medium 1018within the storage unit 1016, within at least one of the processors 1002(e.g., within the Processor's cache memory), or any suitable combinationthereof, during execution thereof by the machine 1000.

The I/O components 1022 may include a wide variety of components toreceive input, provide output, produce output, transmit information,exchange information, capture measurements, and so on. The specific I/Ocomponents 1022 that are included in a particular machine will depend onthe type of machine. For example, portable machines such as mobilephones may include a touch input device or other such input mechanisms,while a headless server machine will likely not include such a touchinput device. It will be appreciated that the I/O components 1022 mayinclude many other components that are not shown in FIG. 10. In variousexamples, the I/O components 1022 may include user output components1024 and user input components 1026. The user output components 1024 mayinclude visual components (e.g., a display such as a plasma displaypanel (PDP), a light-emitting diode (LED) display, a liquid crystaldisplay (LCD), a projector, or a cathode ray tube (CRT)), acousticcomponents (e.g., speakers), haptic components (e.g., a vibratory motor,resistance mechanisms), other signal generators, and so forth. The userinput components 1026 may include alphanumeric input components (e.g., akeyboard, a touch screen configured to receive alphanumeric input, aphoto-optical keyboard, or other alphanumeric input components),point-based input components (e.g., a mouse, a touchpad, a trackball, ajoystick, a motion sensor, or another pointing instrument), tactileinput components (e.g., a physical button, a touch screen that provideslocation and force of touches or touch gestures, or other tactile inputcomponents), audio input components (e.g., a microphone), and the like.

In further examples, the I/O components 1022 may include biometriccomponents 1028, motion components 1030, environmental components 1032,or position components 1034, among a wide array of other components. Forexample, the biometric components 1028 include components to detectexpressions (e.g., hand expressions, facial expressions, vocalexpressions, body gestures, or eye-tracking), measure biosignals (e.g.,blood pressure, heart rate, body temperature, perspiration, or brainwaves), identify a person (e.g., voice identification, retinalidentification, facial identification, fingerprint identification, orelectroencephalogram-based identification), and the like. The motioncomponents 1030 include acceleration sensor components (e.g.,accelerometer), gravitation sensor components, rotation sensorcomponents (e.g., gyroscope).

The environmental components 1032 include, for example, one or cameras(with still image/photograph and video capabilities), illuminationsensor components (e.g., photometer), temperature sensor components(e.g., one or more thermometers that detect ambient temperature),humidity sensor components, pressure sensor components (e.g.,barometer), acoustic sensor components (e.g., one or more microphonesthat detect background noise), proximity sensor components (e.g.,infrared sensors that detect nearby objects), gas sensors (e.g., gasdetection sensors to detection concentrations of hazardous gases forsafety or to measure pollutants in the atmosphere), or other componentsthat may provide indications, measurements, or signals corresponding toa surrounding physical environment.

With respect to cameras, the client device 102 may have a camera systemcomprising, for example, front cameras on a front surface of the clientdevice 102 and rear cameras on a rear surface of the client device 102.The front cameras may, for example, be used to capture still images andvideo of a user of the client device 102 (e.g., “selfies”), which maythen be augmented with augmentation data (e.g., filters) describedabove. The rear cameras may, for example, be used to capture stillimages and videos in a more traditional camera mode, with these imagessimilarly being augmented with augmentation data. In addition to frontand rear cameras, the client device 102 may also include a 3600 camerafor capturing 360° photographs and videos.

Further, the camera system of a client device 102 may include dual rearcameras (e.g., a primary camera as well as a depth-sensing camera), oreven triple, quad or penta rear camera configurations on the front andrear sides of the client device 102. These multiple cameras systems mayinclude a wide camera, an ultra-wide camera, a telephoto camera, a macrocamera and a depth sensor, for example.

The position components 1034 include location sensor components (e.g., aGPS receiver component), altitude sensor components (e.g., altimeters orbarometers that detect air pressure from which altitude may be derived),orientation sensor components (e.g., magnetometers), and the like.

Communication may be implemented using a wide variety of technologies.The I/O components 1022 further include communication components 1036operable to couple the machine 1000 to a network 1040 or devices 1038via respective coupling or connections. For example, the communicationcomponents 1036 may include a network interface Component or anothersuitable device to interface with the network 1040. In further examples,the communication components 1036 may include wired communicationcomponents, wireless communication components, cellular communicationcomponents, Near Field Communication (NFC) components, Bluetooth®components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and othercommunication components to provide communication via other modalities.The devices 1038 may be another machine or any of a wide variety ofperipheral devices (e.g., a peripheral device coupled via a USB).

Moreover, the communication components 1036 may detect identifiers orinclude components operable to detect identifiers. For example, thecommunication components 1036 may include Radio Frequency Identification(RFID) tag reader components, NFC smart tag detection components,optical reader components (e.g., an optical sensor to detectone-dimensional bar codes such as Universal Product Code (UPC) bar code,multi-dimensional bar codes such as Quick Response (QR) code, Azteccode, Data Matrix, Dataglyph, MaxiCode, PDF417, Ultra Code, UCC RSS-2Dbar code, and other optical codes), or acoustic detection components(e.g., microphones to identify tagged audio signals). In addition, avariety of information may be derived via the communication components1036, such as location via Internet Protocol (IP) geolocation, locationvia Wi-Fi® signal triangulation, location via detecting an NFC beaconsignal that may indicate a particular location, and so forth.

The various memories (e.g., main memory 1012, static memory 1014, andmemory of the processors 1002) and storage unit 1016 may store one ormore sets of instructions and data structures (e.g., software) embodyingor used by any one or more of the methodologies or functions describedherein. These instructions (e.g., the instructions 1006), when executedby processors 1002, cause various operations to implement the disclosedexamples.

The instructions 1006 may be transmitted or received over the network1040, using a transmission medium, via a network interface device (e.g.,a network interface component included in the communication components1036) and using any one of several well-known transfer protocols (e.g.,hypertext transfer protocol (HTTP)). Similarly, the instructions 1006may be transmitted or received using a transmission medium via acoupling (e.g., a peer-to-peer coupling) to the devices 1038.

FIG. 11 is a block diagram 1100 illustrating a software architecture1102, which can be installed on any one or more of the devices describedherein. The software architecture 1102 is supported by hardware such asa machine 1108 that includes processors 1148, memory 1150, and I/Ocomponents 1152. In this example, the software architecture 1102 can beconceptualized as a stack of layers, where each layer provides aparticular functionality. The software architecture 1102 includes layerssuch as an operating system 1116, libraries 1114, frameworks 1112, andapplications 1110. Operationally, the applications 1110 invoke API calls1104 through the software stack and receive messages 1106 in response tothe API calls 1104.

The operating system 1116 manages hardware resources and provides commonservices. The operating system 1116 includes, for example, a kernel1142, services 1144, and drivers 1146. The kernel 1142 acts as anabstraction layer between the hardware and the other software layers.For example, the kernel 1142 provides memory management, processormanagement (e.g., scheduling), component management, networking, andsecurity settings, among other functionality. The services 1144 canprovide other common services for the other software layers. The drivers1146 are responsible for controlling or interfacing with the underlyinghardware. For instance, the drivers 1146 can include display drivers,camera drivers, BLUETOOTH® or BLUETOOTH® Low Energy drivers, flashmemory drivers, serial communication drivers (e.g., USB drivers), WI-FI®drivers, audio drivers, power management drivers, and so forth.

The libraries 1114 provide a common low-level infrastructure used by theapplications 1110. The libraries 1114 can include system libraries 1136(e.g., C standard library) that provide functions such as memoryallocation functions, string manipulation functions, mathematicfunctions, and the like. In addition, the libraries 1114 can include APIlibraries 1138 such as media libraries (e.g., libraries to supportpresentation and manipulation of various media formats such as MovingPicture Experts Group-4 (MPEG4), Advanced Video Coding (H.264 or AVC),Moving Picture Experts Group Layer-3 (MP3), Advanced Audio Coding (AAC),Adaptive Multi-Rate (AMR) audio codec, Joint Photographic Experts Group(JPEG or JPG), or Portable Network Graphics (PNG)), graphics libraries(e.g., an OpenGL framework used to render in two dimensions (2D) andthree dimensions (3D) in a graphic content on a display), databaselibraries (e.g., SQLite to provide various relational databasefunctions), web libraries (e.g., WebKit to provide web browsingfunctionality), and the like. The libraries 1114 can also include a widevariety of other libraries 1140 to provide many other APIs to theapplications 1110.

The frameworks 1112 provide a common high-level infrastructure that isused by the applications 1110. For example, the frameworks 1112 providevarious graphical user interface (GUI) functions, high-level resourcemanagement, and high-level location services. The frameworks 1112 canprovide a broad spectrum of other APIs that can be used by theapplications 1110, some of which may be specific to a particularoperating system or platform.

In an example, the applications 1110 may include a home application1118, a contacts application 1124, a browser application 1128, a bookreader application 1132, a location application 1120, a mediaapplication 1126, a messaging application 1130, a game application 1134,and a broad assortment of other applications such as a third-partyapplication 1122. The applications 1110 are programs that executefunctions defined in the programs. Various programming languages can beemployed to create one or more of the applications 1110, structured in avariety of manners, such as object-oriented programming languages (e.g.,Objective-C, Java, or C++) or procedural programming languages (e.g., Cor assembly language). In a specific example, the third-partyapplication 1122 (e.g., an application developed using the ANDROID™ orIOS™ software development kit (SDK) by an entity other than the vendorof the particular platform) may be mobile software running on a mobileoperating system such as IOS™, ANDROID™, WINDOWS® Phone, or anothermobile operating system. In this example, the third-party application1122 can invoke the API calls 1104 provided by the operating system 1116to facilitate functionality described herein.

“Carrier signal” refers to any intangible medium that is capable ofstoring, encoding, or carrying instructions for execution by themachine, and includes digital or analog communications signals or otherintangible media to facilitate communication of such instructions.Instructions may be transmitted or received over a network using atransmission medium via a network interface device.

“Client device” refers to any machine that interfaces to acommunications network to obtain resources from one or more serversystems or other client devices. A client device may be, but is notlimited to, a mobile phone, desktop computer, laptop, portable digitalassistants (PDAs), smartphones, tablets, ultrabooks, netbooks, laptops,multi-processor systems, microprocessor-based or programmable consumerelectronics, game consoles, set-top boxes, or any other communicationdevice that a user may use to access a network.

“Communication network” refers to one or more portions of a network thatmay be an ad hoc network, an intranet, an extranet, a virtual privatenetwork (VPN), a local area network (LAN), a wireless LAN (WLAN), a widearea network (WAN), a wireless WAN (WWAN), a metropolitan area network(MAN), the Internet, a portion of the Internet, a portion of the PublicSwitched Telephone Network (PSTN), a plain old telephone service (POTS)network, a cellular telephone network, a wireless network, a Wi-Fi®network, another type of network, or a combination of two or more suchnetworks. For example, a network or a portion of a network may include awireless or cellular network and the coupling may be a Code DivisionMultiple Access (CDMA) connection, a Global System for Mobilecommunications (GSM) connection, or other types of cellular or wirelesscoupling. In this example, the coupling may implement any of a varietyof types of data transfer technology, such as Single Carrier RadioTransmission Technology (1×RTT), Evolution-Data Optimized (EVDO)technology, General Packet Radio Service (GPRS) technology, EnhancedData rates for GSM Evolution (EDGE) technology, third GenerationPartnership Project (3GPP) including 3G, fourth generation wireless (4G)networks, Universal Mobile Telecommunications System (UMTS), High SpeedPacket Access (HSPA), Worldwide Interoperability for Microwave Access(WiMAX), Long Term Evolution (LTE) standard, others defined by variousstandard-setting organizations, other long-range protocols, or otherdata transfer technology.

“Component” refers to a device, physical entity, or logic havingboundaries defined by function or subroutine calls, branch points, APIs,or other technologies that provide for the partitioning ormodularization of particular processing or control functions. Componentsmay be combined via their interfaces with other components to carry outa machine process. A component may be a packaged functional hardwareunit designed for use with other components and a part of a program thatusually performs a particular function of related functions. Componentsmay constitute either software components (e.g., code embodied on amachine-readable medium) or hardware components. A “hardware component”is a tangible unit capable of performing certain operations and may beconfigured or arranged in a certain physical manner. In various exampleembodiments, one or more computer systems (e.g., a standalone computersystem, a client computer system, or a server computer system) or one ormore hardware components of a computer system (e.g., a processor or agroup of processors) may be configured by software (e.g., an applicationor application portion) as a hardware component that operates to performcertain operations as described herein. A hardware component may also beimplemented mechanically, electronically, or any suitable combinationthereof. For example, a hardware component may include dedicatedcircuitry or logic that is permanently configured to perform certainoperations. A hardware component may be a special-purpose processor,such as a field-programmable gate array (FPGA) or an applicationspecific integrated circuit (ASIC). A hardware component may alsoinclude programmable logic or circuitry that is temporarily configuredby software to perform certain operations. For example, a hardwarecomponent may include software executed by a general-purpose processoror other programmable processor. Once configured by such software,hardware components become specific machines (or specific components ofa machine) uniquely tailored to perform the configured functions and areno longer general-purpose processors. It will be appreciated that thedecision to implement a hardware component mechanically, in dedicatedand permanently configured circuitry, or in temporarily configuredcircuitry (e.g., configured by software), may be driven by cost and timeconsiderations. Accordingly, the phrase “hardware component” (or“hardware-implemented component”) should be understood to encompass atangible entity, be that an entity that is physically constructed,permanently configured (e.g., hardwired), or temporarily configured(e.g., programmed) to operate in a certain manner or to perform certainoperations described herein. Considering embodiments in which hardwarecomponents are temporarily configured (e.g., programmed), each of thehardware components need not be configured or instantiated at any oneinstance in time. For example, where a hardware component comprises ageneral-purpose processor configured by software to become aspecial-purpose processor, the general-purpose processor may beconfigured as respectively different special-purpose processors (e.g.,comprising different hardware components) at different times. Softwareaccordingly configures a particular processor or processors, forexample, to constitute a particular hardware component at one instanceof time and to constitute a different hardware component at a differentinstance of time. Hardware components can provide information to, andreceive information from, other hardware components. Accordingly, thedescribed hardware components may be regarded as being communicativelycoupled. Where multiple hardware components exist contemporaneously,communications may be achieved through signal transmission (e.g., overappropriate circuits and buses) between or among two or more of thehardware components. In embodiments in which multiple hardwarecomponents are configured or instantiated at different times,communications between such hardware components may be achieved, forexample, through the storage and retrieval of information in memorystructures to which the multiple hardware components have access. Forexample, one hardware component may perform an operation and store theoutput of that operation in a memory device to which it iscommunicatively coupled. A further hardware component may then, at alater time, access the memory device to retrieve and process the storedoutput. Hardware components may also initiate communications with inputor output devices, and can operate on a resource (e.g., a collection ofinformation). The various operations of example methods described hereinmay be performed, at least partially, by one or more processors that aretemporarily configured (e.g., by software) or permanently configured toperform the relevant operations. Whether temporarily or permanentlyconfigured, such processors may constitute processor-implementedcomponents that operate to perform one or more operations or functionsdescribed herein. As used herein, “processor-implemented component”refers to a hardware component implemented using one or more processors.Similarly, the methods described herein may be at least partiallyprocessor-implemented, with a particular processor or processors beingan example of hardware. For example, at least some of the operations ofa method may be performed by one or more processors orprocessor-implemented components. Moreover, the one or more processorsmay also operate to support performance of the relevant operations in a“cloud computing” environment or as a “software as a service” (SaaS).For example, at least some of the operations may be performed by a groupof computers (as examples of machines including processors), with theseoperations being accessible via a network (e.g., the Internet) and viaone or more appropriate interfaces (e.g., an API). The performance ofcertain of the operations may be distributed among the processors, notonly residing within a single machine, but deployed across a number ofmachines. In some example embodiments, the processors orprocessor-implemented components may be located in a single geographiclocation (e.g., within a home environment, an office environment, or aserver farm). In other example embodiments, the processors orprocessor-implemented components may be distributed across a number ofgeographic locations.

“Computer-readable storage medium” refers to both machine-storage mediaand transmission media. Thus, the terms include both storagedevices/media and carrier waves/modulated data signals. The terms“machine-readable medium,” “computer-readable medium” and“device-readable medium” mean the same thing and may be usedinterchangeably in this disclosure.

“Ephemeral message” refers to a message that is accessible for atime-limited duration. An ephemeral message may be a text, an image, avideo and the like. The access time for the ephemeral message may be setby the message sender. Alternatively, the access time may be a defaultsetting or a setting specified by the recipient. Regardless of thesetting technique, the message is transitory.

“Machine storage medium” refers to a single or multiple storage devicesand media (e.g., a centralized or distributed database, and associatedcaches and servers) that store executable instructions, routines anddata. The term shall accordingly be taken to include, but not be limitedto, solid-state memories, and optical and magnetic media, includingmemory internal or external to processors. Specific examples ofmachine-storage media, computer-storage media and device-storage mediainclude non-volatile memory, including by way of example semiconductormemory devices, e.g., erasable programmable read-only memory (EPROM),electrically erasable programmable read-only memory (EEPROM), FPGA, andflash memory devices; magnetic disks such as internal hard disks andremovable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks Theterms “machine-storage medium,” “device-storage medium,”“computer-storage medium” mean the same thing and may be usedinterchangeably in this disclosure. The terms “machine-storage media,”“computer-storage media,” and “device-storage media” specificallyexclude carrier waves, modulated data signals, and other such media, atleast some of which are covered under the term “signal medium.”

“Non-transitory computer-readable storage medium” refers to a tangiblemedium that is capable of storing, encoding, or carrying theinstructions for execution by a machine.

“Signal medium” refers to any intangible medium that is capable ofstoring, encoding, or carrying the instructions for execution by amachine and includes digital or analog communications signals or otherintangible media to facilitate communication of software or data. Theterm “signal medium” shall be taken to include any form of a modulateddata signal, carrier wave, and so forth. The term “modulated datasignal” means a signal that has one or more of its characteristics setor changed in such a matter as to encode information in the signal. Theterms “transmission medium” and “signal medium” mean the same thing andmay be used interchangeably in this disclosure.

What is claimed is:
 1. A method, comprising: receiving, by a messagingapplication running on a device of a user, a request to scan an imagecaptured by a device camera; determining, in response to receiving therequest, a travel parameter associated with the request and an attributeof an object depicted in the image; selecting, from among pluralcandidate user interfaces relating to user-submitted reviews, a userinterface that corresponds to the travel parameter and the attribute;and displaying an augmented reality content item, which includes theselected user interface, with the image.
 2. The method of claim 1,wherein the travel parameter indicates at least one of a travelschedule, a transportation schedule, a general location, a specificvenue or landmark, an activity, a list of participants, or a topic ofinterest associated with travel by the user.
 3. The method of claim 1,wherein the selected user interface corresponds to displaying a set ofuser-submitted reviews relating to the object.
 4. The method of claim 1,wherein the selected user interface corresponds to updating a personalreview relating to the object, the personal review being included in aset of user-submitted reviews relating to the object.
 5. The method ofclaim 1, further comprising: selecting, from among plural augmentedreality content items, the augmented reality content item based on theattribute and the travel parameter; and activating the selectedaugmented reality content item prior to the displaying.
 6. The method ofclaim 1, wherein the augmented reality content item is selected prior toreceiving the request.
 7. The method of claim 1, wherein the requestcorresponds to user selection of an interface element for performing thescan.
 8. The method of claim 1, wherein the request corresponds to apress-and-hold gesture performed within a predefined portion of a screenof the device.
 9. The method of claim 1, wherein selecting the userinterface is based on a geolocation of the device.
 10. The method ofclaim 1, wherein the image corresponds to a live feed of a camera of thedevice.
 11. The method of claim 1, wherein the image corresponds to asaved image included in a photo library associated with the user.
 12. Adevice, comprising: a processor; and a memory storing instructions that,when executed by the processor, configure the processor to: receive, bya messaging application running on a device of a user, a request to scanan image captured by a device camera; determine, in response toreceiving the request, a travel parameter associated with the requestand an attribute of an object depicted in the image; select, from amongplural candidate user interfaces relating to user-submitted reviews, auser interface that corresponds to the travel parameter and theattribute; and display an augmented reality content item, which includesthe selected user interface, with the image.
 13. The device of claim 12,wherein the travel parameter indicates at least one of a travelschedule, a transportation schedule, a general location, a specificvenue or landmark, an activity, a list of participants, or a topic ofinterest associated with travel by the user.
 14. The device of claim 12,wherein the selected user interface corresponds to displaying a set ofuser-submitted reviews relate to the object.
 15. The device of claim 12,wherein the selected user interface corresponds to updating a personalreview relate to the object, the personal review being included in a setof user-submitted reviews relating to the object.
 16. The device ofclaim 12, wherein the instructions further configure the processor to:select, from among plural augmented reality content items, the augmentedreality content item based on the attribute and the travel parameter;and activate the selected augmented reality content item prior to thedisplaying.
 17. The device of claim 12, wherein the augmented realitycontent item is selected prior to receiving the request.
 18. The deviceof claim 12, wherein the request corresponds to user selection of aninterface element for performing the scan.
 19. The device of claim 12,wherein the request corresponds to a press-and-hold gesture performedwithin a predefined portion of a screen of the device.
 20. Anon-transitory computer-readable storage medium, the computer-readablestorage medium including instructions that when executed by a computer,cause the computer to: receive, by a messaging application running on adevice of a user, a request to scan an image captured by a devicecamera; determine, in response to receiving the request, a travelparameter associated with the request and an attribute of an objectdepicted in the image; select, from among plural candidate userinterfaces relating to user-submitted reviews, a user interface thatcorresponds to the travel parameter and the attribute; and display anaugmented reality content item, which includes the selected userinterface, with the image.